Answer:
C. groupthink
Explanation:
According to my research on in the field of psychology, I can say that based on the information provided within the question this scenario illustrates the concept of groupthink. This is a psychological phenomenon which states that the desire for maintaining a cooperative and harmonious nature within a group leads individuals in that group to behave irrationally leading to bad decision-making choices. Which is what is happening in this scenario since Mikhail isn't voicing her opinion in order to maintain the same group dynamic.
I hope this answered your question. If you have any more questions feel free to ask away at Brainly.